Question

Listed below are he overhead widths n cm of sea s measured o m photographs and the weights n kg ofthe seals. Construct a sca e plat find the value of he linear correlation coe conclude that there is a linear correlation between overhead widths of seals from photographs and the weights of tha saals? and find he critical values ofr using =0 05 s there s en evidence to cert Overhead Width 7 749.89.28.68.2 Weight Construct a scatterplot. Choose the correct graph below O B. A. D. ka) ka) 30 10 10 10 wicth ( The linear correlation coefficient r is Round to thrae dacimal places as needad ) The critical values arer (Round to three decimal places as needed. Use a comma to separate answers as needed.) Because tha absolute value of the linear corelation coafficient is ess than the positive criticall value, there is not sufficient evidance to support the claim that there is a linear correlation between overhead widths of seals from photographs and the weights of the seals for a significance level of α : 0.05

Answer 1

The scatter plot is given by:

OPTION C

Scatter Plot 300 250 200 150 100 50 7.5 8.5 9.5 10

The linear correlation coefficient is

0.846

The corresponding critical correlation value r​ for a significance level of α=0.05, for a two-tailed test is:

0.811

The two blanks are:-

greater, is

0.846 > -0.811, from which is Based on the sample correlation provided, we have that r concluded that the null hypothesis is rejected

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